Offset perfecting-press.



D. J. SCOTT.

OFFSET PERFECTING PRESS.

APPLICATION FILED SEPT.29. 1916.

Patented July 16, 1918.

%1 Guam mi of New oi ifsnrinmaicrme-rnnsa To all whom it may concern:

Be it n n that 1; D m Soo'rr, ii/Citizen of the United States,-and aresident'of' Plainfield in the county of Unionand State jersey, anduseful- Improvements in Offset Perfecting-Presses, of which thefollowing; is a specification.

high class results,

The .present invention relates-generally to offset perfecting pressesand has more partlcularly reference to the general arrangement of theunits composing such press.

The presentapplication is in part a continuation of, and in part annnprovement. on, one filed April 2, 1915, Serial No. 18,639,

and hasfor its main object to provide a ma chine in which both sides of:the Web are printed by the offset method without the omission ofelements necessary to produce andfat the same time, to provide anarrangement of cylinders whereby all the Workingparts will be completelyacce'sible. Another object of the invention is to provide means forconveniently con trolling the various instrumentalities that make up thepress.

Accordingly, the invention consists'of the features of construction,combination of parts and arrangement of elements, herein-' afterdescribed, a preferred form of which is disclosed in the accompanyingdrawings and description. However, changes may be'made in the particularform herein described without departing from. the legitimate andintended scope of the inventionas defined in the appended claims.

In said drawings: Figure 1 is a diagrammatic view' showing a machineembodying the invention inclevation.

Fig. 2 is a detail view of the throw-off of the impression-cylinder ofthe second unit and associated elements.

Similar characters of reference indicate corresponding. parts in theseveral views.

In thereferred form shown in the drawings, A, and E representrespectively the plate, blanket or transfer, and impression cylinders ofone couple or un1t,'wh1 le B, D and F represent respectively the plate,blanket for transfer, and impression cyhn ders of the second printingcouple or unit. It will'be observed that the transfer and form-carryingcylinders are arranged one 'above the other, in the present case theformspa -am of Letters meat. 4 p application filed s temser 29, 1916.Serial 1%. 195333; I

have invented certain new" i wayifii i carrying 1 cylinder beinglowermost, and form an exposed operating side that is read- 11yaccessible tothe operator-for manipulation' of the'form and blanketmembers ,and

that the impression cylinder of each'unit'iis offset (in this embodimentonly partly) out of the vertical plane of the other. cylinders of theunit and is therefore non-adjacent to the operating side. The two unitsare so. r .55 f I grouped that the operating sides are outermost and theimpression cylinders innermost and cbmparativ'ely close together. Theimpression cylinders are here uppermost of the structure. I v I 1s asource of the supply of paper in web form and L is a delivery, hereconveniently represented as a former folder.- These'instrumentalitiesare locatedf adjacent to the outeroperating sides of the machine andspaced therefrom to afford room .for platforms or'gangways G and H.

' O indicates the usual inking mechanism and N water rollers, which mayor may not be employed, that are located non-adj acent to .the operatingside of the machine.

37 is an anti -smutting device which en gages with the impressioncylinder of the second unit to prevent smutting of the cylinder by thepreviously printed side of the pa er.

[he paper is ledfrom the, source of supply I over guide r'olls X,underneath gang" way G and one unit or couple to a pointin-A terinediatethe two units or couples, thence upwardly between the two units, thenceover a guide roller X to the impression cylinder of the other printingcouple, thenceto the impression cylinder of'the first-mentioned printingcouple; and thence above the inipression cylinders of both printingcouples over the guide roller X to former folder L..

It will benoted that the anti-smutting decomprising the unit andoutwardly 'o'f the exposed operatingside. The v impression cylinders arelikewise movable but'inwardly toward each other away fromtheircotiperating transfer cylinders.

tion of the elements i an adjusting screw so, that when in handles 39or. 37

So likewise the dampening mechanisms, when such form a part of thestructure, are movable toward each other and away from the form-carryingcylinders. As shown here, the dampening mechanisms are locatednon-adjacent to the operating side of the machine.

Various instrumentalities may be employed for the purpose 'of effectingsepara but inthe preferred form, here disclosed, 53v indicates the shaftof impressionfcylinder F which is mounted'in 'a rectangular sliding box54:. .This sliding box; carries a shaft 55 that forms one member of thetog Ie, the other member of 'which .is' a link 56. A block 57 isadjustable inf the framing by means of 58 and a' locknut 58. On, theendfof shaft55 is an operating lever-.59 having. secured at its outerend a connecting, rod 60 extending to a bell crank 61'. The'cylinder'sE, D and G are similarly mounted and it is therefore unnecessary todescribe in detail each mounting, it being sufficient to describebriefly the trip bell crank 61, '61 and 61. Each bell crank is providedfwithga handle indicated respectivelyzit-14,28, 39] an'd. 37'. Extendingbetween bell crank '61. 6e impression cylinder F and bell crank 61"ofimpression cylinder E ist a rod 26 disconnectible from one of saidjbellcranks by reason of a hook 38. 4 When the'liookis in position,manipulation of either one of handles '14 or 28 will trip both of theimpression cylinders toward each other and away from their complementaryblanket cylinders. If hook 38 is disconnected,-.each impression cylindermay be tripped independently oflthe other. Similarly, there is'a rod 120which extends across the machine between bell cranks 61 and 61 of thetwo blanket cylinders. This rod likewise has a hook connection 36 at oneend position manipulation of will trip both blanket cylinders'a'way fromthe plate and the impression cylinders outwardly of the operating sidesof the machine and whichfwhen disconnected, will permit each of said webruns, as shown, and that the anti-smut- .ting device 37 is locatedintermediate these two web runs. For the sake of convenience, ithlSanti-smutting device 37 is mounted on a {sliding box-54 so that whenimpression cylinder F is thrown 'ofi,'the anti-smutting device will bemoved bodily with There isfalso provided-an eccentric 37 by means of nhichfone of the rollsof theanti-smutting. ,as.

dtyice'j my, be thrownoff" impression .for the unit, said units revenue-riage N which may be moved toward and away from the form-carryingcylinders by means of handle 34. 1

What is claimed is: I 1. A rotary offset perfecting machine compr sing:a plurality of side-by-side units prlntin from positive forms onopposite sides 0 impression receiving material, each unit consisting ofa form-carrying, a transfer and an impression cylinder all ofsubstantially the same diameter, the form-can rying and transfercylinders being arranged in an upright column and the impressioncylinder being arranged out of line with the other cylinders anduppermost of said column to afford an exposed operating side beinggrouped with their operating sides outermost and with their impressioncylinders innermost, and an anti-smutting device, engaging with saidimpression cylinder of saidsecond unit, located intermediate the twounits.

' 2. A rotary ofi'set perfecting machine com- 95 prising: a plurality ofside-by-side units printing from positive forms on opposite sidesof'impression receiving material, each unit consisting of aform-carrying,a trans fer and an impression cylinder all of sub- 100.stantially the same diameter, the form-car- Y rying and transfercylinders being arranged in an upright column and the impressioncylinder being arranged out of line with the V other cylindersanduppermom of said col 10 5" ting device, engaging withsaid impression11o cylinder of sald second unit, located'intermediate the two units,and means for. moving the transfer cylinder of each umt out- -wardlywith respect to the operating side of said unit and away from the othercylinders 11;; of the unit.

3. A rotary offset perfecting machine comprising: a plurality ofside-by-side units printing from positive forms on oppositesides ofimpression receiving material, each 12o unit consisting of aform-carrying, a transfer. and an impression cylinder all ofsubstantially the same diameter the form-car rying and transfercylinders eingarranged in an upright column andthe'iinpressioncylinder-being arranged out of line with the other cylinders anduppermost of said col-- umn to afford an exposed operatingside for theunit, said units being grouped with their Operating sides outermostandwith their i'mssence pression cylinders innermost, means for guiding theweb below one unit, thence be-' tween the two units, thence to theimpression cylinder of one unit, thence across from one unit to theimpression cylinder of the other unit and thence up and around the saidfirst unit, and an anti-smutting device, engaging with said impressioncylinder of said second unit, located intermediate the two units.

4. A. rotary ofi'set perfecting machine comprising: a plurality ofside-by-side units printing from positive forms on o posits sides ofimpression receiving materia each unit consisting of a form-carrying, atransfer and an impression cylinder all of substantially the samediameter, the form-carrying and transfer cylinders being arranged inan'upright column and the impression cylinder being arranged out of linewith the v thence one unit to and between the other cylinders anduppermost of said column to afiord an exposed operating'side for theunit, said units being grouped with their operating sides outermost andwith their impression cylinders innermost, means for guidin the webbetween the two units,

between the transfer and impression cylinders of the first unit, thenceacross from transfer and impression cylinders of the second unit andthence above the impression cylinders of both units, and ananti-smutting device engaging with the impression cylinder of thesecond. unit and'located above the we run between the two units andbelow the w run above the impression cylinders of the two as units.

'5'. An ofiset web perfecting machine comprising: a lurality oi units,each unit including a arm-carrying, a transfer and an impressioncylinder, means for bodily movso ing the impression cylinder of thesecond unit away from its transfer cylinder, and an anti-smutting deviceengaging the impression cylinder of the second unit and mounted movebodily with said. impression cylin- 6. An ofiset web perfecting machinecomprising: a plurality of units, each unit including a form-carrying, atransierland-an impression cylinder, means for bodilyi-mov- 5Q ing theimpression cylinder of the-second umt away from its transfiercylinder,an anti mutting device engaging the impression cylinder of the secondunit and mounted to move y with SaidiIHPIQSSIOH cylinder, and means forthrowing the anti-smutt' device ofi said impression cylinder.

lgned at Plainfield, in the county of Union and State of New Jersey,this 21th day of September, A. D. 1916. 7

DAVID JOHN SCOTT.

Witnesses:

CARL E. DRANGE J. V. Cones,

